Of the SDA owners, which model do you own?
I won't break it down to specific versions though.. so if you own 1C's. they would fall under SDA 1's
If you own SDA 2A's or 2B's. they fall under SDA 2's.. etc
*you are allowed to vote for more than one choice, if you own more than one pair of SDA's. if you own 3 pair's and all are different, choose the three versions you own.